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A fish finder uses sonar to find fish under water. It does this by sending out a pulse of sound and measuring the time for the sound to return. If it takes 0.016 s for sound to be detected after being emitted, how far away are the fish? Hint, the speed of sound in water is 1440 m/s.
the wheels of an automobile are locked as it slides to a stop from an initial speed of 30.0 m/s. how far does it take the car to stop
Two people are pulling a boat through the water as in the figurebelow. Each exerts a force of 600 N directed at a θ= 30.0° angle relative to the forward motion of theboat. If the boat moves with constant velocity, find the resistiveforce vector F exe..
An abandoned ship is in the ocean at a depth of 161 meter. The ship has a flat circular port of diameter of 12 centimeter. Obtain the magnitude of the total force on the port
Two billiard balls of equal mass undergo a perfectly elastic head-on collision. what will be their speeds after the collision
A space vehicle is coasting at a constant velocity of 21.5 m/s in the +y direction relative to a space station. Find the direction of the vehicle's velocity relative to the space station
A horizontal pipe contains water at a pressure of 111 kPa flowing with a speed of 1.8.00 m/s. The pipe narrows to one-half its original diameter. What are speed and pressure of the water while the pipe narrows?
A series RLC circuit with R = 43 Ohms , L = 270 mH , Find the maximum frequency of the frequency range over which the peak current will exceed half its value at resonance
A dog sits 1.53-m from the center of a merry-go-round with an angular speed of 1.65 rad/s. If the magnitude of the force that maintains the dog's circular motion is 38-N, what is the dog's mass.
An infinite plane of charge (see figure below) has a charge perunit area of σ = 2.7 µC/m2. What is the change in the electric potential between points that are2.3 m (initial) and 4.6 m (final) from the plane?
You are consulting for an amusement park that wants to build a new "Rotor" ride. What must be the angular speed in revolutions per minute
A 50.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 560 kg · m2 and a radius of 2.00 m. find With what angular speed does the turntable rotate
A building made of concrete is gauged to be 425 m tall when it is -23°C outside. How much taller will it be when the temperature reaches 41°C? (In cm)
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